Car construction



Oct. 8, 1929. J. F. ocoNNoR CAR CONSTRUCTION Filed April 9, 1928 ,nga

ZL A f5 fr Patented Get. 8, 19429 UNTED STATES PATENT FFKEk JOHN F. OCONNOR, CF CHICAGO, ILLXNOS, ASSGNOR TO W. I-I.

Minna, INo., or

CHICAGO, LLINOS, A CRPCR-all-.Tll' OF DELAW'ARE CAR CONSTRCTN Application filed April 9, 1328. Serial No. 268,561.

This invention relates to improvements in car construction.

One object of the invention is to provide a simple, eliicient and reliable means for connecting the body holster and arch or transom member of a railway car, including a center or king' pin headed at one end and extending through the body bolster and arch member, wherein readily detachable means is employed at the end of the pinto secure the same against detachment, comprising a separable, sectional head portion.

A further object of the invention is to provide a retaining means of the character indi cated, for a center pin of a railway car, having a lined head at one end and a detac iahle head secured to the other end, the detachable head and pin `having co-operating locking abutment shoulders.

Another object of the invention is to provide means for connecting the arch or transom member to the holsters of railway car trucks, presenting relatively large bearing areas to provide a rugged and reliable construction, wherein the connecting means includes heavy trunnion members and cooperating hearing sections on the truck holsters and transom member, respectively, together with cup-shaped locking `elements engaging over said trunnions and bearing membe-rs to secure the same together.

In the drawing, forming a part of this specification, Figure 1 is a plan view of a portion of one of the body holsters and a portion of the car truck structure of a railway car, illustrating my improvements in connection therewith. Figure 2 is a longitudinal, vertical, sectional view, corresponding substantially to the line 2-2 of Figure 1. Figure 3 is a vertical, sectional view, corresponding to the line 3-3 of Figure 2. And Figure i is a bottom plan View of the structure at the central portion of the transom or arch member of the car truck.

In said drawing, 1() designates one of the body holsters of a railway car underframe structure, which is supported by an arch or transom member 11 of the car truck, the arch member 11 being in the form of a spider and oppositely projecting of suln stantially radially arranged arms 12-12, the pairs of arms 12 extending respectively for-v wardly and rearwardly from the body bolster 10. The railway car truck includes the usual truclr holsters 13-13 which, as shown, are spaced apart and support the transom member. rlhe body bolster 10 is provided with the usual center bearing section 14 which in cludes a vertically disposed sleeve-lilre section connecting the top and bottom membersof the body bolster proper. At the center bearing section, the lower member of the body bolster is provided with the center hearing niiemher proper 15, the same being in the form of a downwardly projecting enlargement having a spherical hearing surface 16. The

center hearing member properis recessed at the center, as indicated at 17, to receive the co-operating portion of the complementary hearing member on the transom 11.

The transom member 11 has the upper section thereof formed with an upstanding enlargement 18 which has a spherical top bearing surface 19 mating with the hearin surface 16 of the body holster. The bearing member of the transom is provided with a central, frusto-conical projection extending into the opening 17 of the bearing member of the body holster. The top and bottoni sections of the transom member are connected by an integral sleeve-like section 119, which is adapted to receive the center or king pin.

The sleeve-like sections 14 and 119 of the body l bolster and transom member provide aligned` openings, adapted to accommodate the center or king pin which connects the holster to the transom. As shown, the pin receiving` openings are preferably centrally enlarged.y The pin receiving opening of the body holster is enlarged at the upper end, thereby providing a seat 20 for the head of the center pin. At the bottom of the transom member a pocket 21 is provided, which is in alignment with the pin receivingl opening of the transom. AS shown, the pocket is of the same width as the pin receiving opening, but is elongated in opposite directions, as shown, for a purpose hereinafter point-ed out.

In carryinL out my inventioml provide the truclr holsters 13 with bearing means which supports the outer ends of the arms of the transom member. As shown, each truck bolster 13 has two upstanding bracket members 22 which are provided with horizontally disposed trunnion members 23. Each trunnion member, as shown, extends laterally beyond the base portionvof the bracket 22. The extremities of the arms 12 of the transom member are provided with semi-cylindrical bearing portions 24 which engage over the upper portions of the trunnions 23.

lt will thus be evident that the extremities of the arms 12 of the transom are directly supported by the bearing sections 24 thereof on the trunnion members 23.

1n order to retain the parts in position, a pair of retaining caps 25-25 are employed, each cap being in the form of a disc-like member provi-ded with an annular flange 26. The annular flange 26 of each cap has the lower portion thereof inwardly offset, as indicated at 27, so as to lit the trunnion member 23, the remaining portion of the flange 2G thereof fitting over the bearing section 24 of the corresponding arm 12 of the transom 11. As most clearly shown in Figure 3, the flanges of the caps 25 are of such a width that they contact with the bracket member 22 as the parts are assembled. The two caps 25 of each connecting member are engaged over the opposite projecting ends of the corresponding trunnion 23 and over the ends of the bear-v ing section 24 which co-operates with said trunnion. It will be clear that when the parts have been thus assembled, the bearing section 24 is held to the corresponding trunnion 23. Removal of the caps 25 is prevented by a bolt 37 which extends through aligned openings in the two caps and the trunnion member 23.

My improvements are herein illustrated as employed in connection with a railway car truck of the six-wheel type, the central axle of the truck being designated by 23, as illusrated in Figure 2.

My improved means for connecting the body bolster and the transom member of the car truck comprises a king or center pin A and a retaining member proper B.

The king pin A is of the headed type, having the head member 29 at the upper end thereof and formed integrally therewith. The pin is of such a length as to extend entirely through the openings in the bodyl bolster andthe arch member, with the lower section thereof, which designated by 30, exten-ding into the pocket 21 and protruding beyond the bottom of the transom member. The section 30 of the pin is provided with an annular groove 31 adjacent the lower end thereof, thereby providing a head `member 32 at the lower extremity of the pin which is of the same diameter as the body portion proper of the pin. The top wall of the annular groove 31 is preferably flush with the top wall of the pocket 21, as most Clearly illustrated in Figure 2.

The retaining member B comprises two complementary blocks which together form a sectional, detachable head for the lower end of the pin. Each of the blocks B is centrally cut away, as indicated at 33, to lit the corresponding side of the lower end of the pin, the cut away portions of the blocks being of two diameters, as shown, so as to provide a step arrangement which lits both the head 32 and the groove portion 31 of the section 30 of the pin. .In other words, each block is provided with an enlarged recess which fits the head 32, and an inturne-d flange-like section above said recess, which engages within the annular groove 31. When the detachable sectional head is assembled with the pin, the sections embrace the opposite sides of the pin and, in effect, form a continuous head member. The sections are retained in fixed position on the pin by means of a transverse bolt 34 extending through aligned openings in the sections of the member B and a transverse opening in the head portion 32 of the l In assembling the parts when connecting the truck to the body bolster, the king pin A is inserted through the top of the body bolster and passed through the aligned pin receiving openings of the body bolster and the arch or transom member. The head 29 of the pin will thus be seated within the pocket 20 at the top of the body bolster, thereby preventing downward movement of the pin A. The sectional retaining head B is then applied to the lower end section 30 of the pin by inserting the two sections at opposite sides of the pocket 21, bringing the inturned flange sections thereof into alignment with the groove 31. The two sections of the head B are then moved laterally in the pocket 21 engaging the flange sections thereof within thegroove 31 of the pin. After the head has been thus applied, the same is secured by the bolt 34. As will be evident, when the parts have been thus assembled separation of the truck member from the body bolster is positively prevented due to the engagement of the head 29 at the upper endrof the pin with the abutment surface of the body bolster and engagement of the sectional head B at the lower end of the pin with the top wall of the pocket 21 of the transom member.

From the preceding description, taken in connection with the drawing, it will be evident that I have provided a simple and reliable retaining means for locking the king or center pin of a body bolster and truck connection so that separation of the body bolster and truck member is positively prevented thereby greatly reducing the danger of accidents to railway equipment due to the separation of these parts.

Y It will also be noted that by providing the trunnion members on the bolsters of the truck, over which the bearing portions of the arch member engage, a very durable and rugged construction of support for the arch member of the truck is provided, thereby adding greatly to the life of the car truck structure, inasmuch as the retaining pins or bolts which connect the arch member to the truck bolsters are relieved from strains and shearing action.

Vhile I have herein shown and described what I consider the preferred manner of carrying out my invention, the same is merely illustrative and I contemplate all changes and modications which come within the scope of the claims appended hereto.

I claim:

1. In a swiveled connection oi' a body bolster and truck of a railway car, wherein the truck includes a transom member supporting the body bolster, the combination with a cen-- ter pin extending through the body bolster and transom member, said pin having a fixed head at one end; and a detachable sectional head member secured to the other end of the pin, said pin and sectional head having a tongue and groove connection; and means extending through said sections to secure the same together and maintain said tongue and groove connection interengaged.

2. A king pin for uniting the truck of a railway car to the body bolster thereof, said pin being headed at opposite ends, one of said heads being fixed and the other head being detachable, said detachable head comprising separable sections embracing the pin proper, said sections and pin having interengaging flange and groove connection.

8. In a railway car construction, the combination with a body bolster member; of a truck provided with a transom member on which the body bolster member is swiveled; a king pin extending through said members, said pin having a head at the upper end, co-operating with abutment means on the body bolster, the lower end of said pin being grooved; a detachable, sectional head member on the lower end of the pin co-operating with abutment means on the transom member, the sections of said head embracing the pin and having inturned flanges seated in said groove; and means for securing the sections of said head together.

4. In a railway car construction, the combination with a body bolster member; of a truck provided with a transom member supporting said bolster, said body bolster being swiveled on the transom member, said members having aligned center pin receiving openings, the outer end portion of one of said openings being laterally enlarged; a center pin accommodated in said openings, said center pin having a section thereof extending through said laterally enlarged portion of the opening, said last-named section of the pin being provided with a groove; a detachable cylindrical head secured to said lastnamed section, said head comprising a pair of complementary block members recessed on the inner sides to conform to saidpin and `provided with inturned flange sections seated in said groove; and means for securing said blocks together, said blocks being accommoe dated in said laterally enlarged section of the recess when the parts are being assembled and being laterally displaceable toward each other in said recess to permit engagement of the fianges thereof with the groove of the pin.

5. In a railway car construction, the combination with a body bolster; of apcar truck including a transom member on which the body bolster is swiveled, said body bolster and transom member being provided with aligned center pin receiving openings, said opening of the body bolster being enlarged at the upper end to accommodate the head of the center pin and the opening of the transom being enlarged at the lower end to accommodate a locking element; a center pin extending through said openings, said pin being headed at the upper end and cut away adjacent the opposite end to provide a head member of not greater diameter than the pin proper; and a detachable retaining element accommodated in the enlarged portion of the opening of the transom, said retaining member comprising a pair of blocks embracing and fitting the head at the lower end of the pin, said blocks having flange sections extending into said cut away portion of the pin and engaging in back of said head.

6. In a railway car construction, the combination with a body bolster; of a truck member including spaced truck holsters and a transom member on which the body bolster is swiveled, said truck bolster being provided with trunnion members for supporting the transom and the transom being provided with bearing portions engaging over the trunnion members; retaining means co-operating with each trunnion, comprising cup-shape flanged disc members having the flanges thereof engaging over the opposite ends of said trunnion and the bearing portions of the corresponding arm of the transom member; and a retaining bolt securing said retaining mem-V bers to the corresponding trunnion.

In witness that I claim the foregoing I have hereunto subscribed my name this 6th day of April, 1928.

JOHN F. OCONNOR. 

